Filter element



FIG. 1 is a side view of a filter element showing my new design;

FIG. 2 is a top plan view of the filter element of FIG. 1;

FIG. 3 is a bottom view of the filter element of FIG. 1;

FIG. 4 is an perspective top view of the filter element of FIG. 1; and,

FIG. 5 is a perspecitve bottom view of the filter element of FIG. 1. 

The ornamental design for a filter element, as shown and described. 